Which advantage does a smooth-bore nozzle have over a fog-stream nozzle?

A smooth-bore nozzle is designed to produce a straight and solid stream of water, which is more effective in certain firefighting situations compared to a fog-stream nozzle. One of the significant advantages of using a smooth-bore nozzle is its ability to deliver water in a manner that can absorb and penetrate heat more effectively due to the velocity and mass of the stream. The smooth-bore nozzle allows for a continuous flow of water, which can maintain its energy and reach the fire more efficiently, providing better cooling and reducing the risk of steam generation that could create hazardous conditions for firefighters and victims.

This solid stream facilitates better penetration into the fire area, allowing the water to reach deeper into the seat of the fire, effectively cooling both the flames and the surrounding materials involved in combustion. In contrast, while fog-stream nozzles can produce a variety of stream patterns and finer water particles, they may not have the same penetrating capability and heat absorption potential as a smooth-bore nozzle, especially in high-temperature fire conditions. This understanding emphasizes the tactical decision-making in the choice of nozzle based on specific firefighting situations.